package io;

import java.io.*;

public class CopyDemo3 {
    public static void main(String[] args) throws IOException {

        FileInputStream fis = new FileInputStream("./壁纸0.4.jpg");
        BufferedInputStream bis = new BufferedInputStream(fis);
        long start = System.currentTimeMillis();
        FileOutputStream fos = new FileOutputStream("image_cp3.jpg");
        BufferedOutputStream bos = new BufferedOutputStream(fos);
        int d;
        while ((d = bis.read()) != -1) {
            bos.write(d);
        }
        long end = System.currentTimeMillis();
        System.out.println("复制完成，耗时：" + (end-start) +"ms");
        bis.close();
        bos.close();
    }
}